INVESTMENTS (Details - Amortized cost or cost and fair value of Available for sale securities) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	$ 228,047	$ 226,766
Available for sale securities, Gross Unrealized Gains	8,845	15,315
Available for sale securities, Gross Unrealized Losses	(4,172)	(1,381)
Available-for-sale Securities	232,720	240,700
Total, Other-Than-Temporary Impairments in AOCI		0
AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	1,368	1,656
Common Stock
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI		0
Preferred Stock
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI		0
Mutual Funds
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI		0
Bonds available for sale
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	228,047	225,461
Available for sale securities, Gross Unrealized Gains	8,845	14,891
Available for sale securities, Gross Unrealized Losses	(4,172)	(1,360)
Available-for-sale Securities	232,720	238,992
Other details of available for sale securities
Available for sale securities not rated or rated below investment grade	30,600	31,500
Bonds available for sale | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	1,368	1,656
Bonds available for sale | U.S. government and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	3,069	2,532
Available for sale securities, Gross Unrealized Gains	101	160
Available for sale securities, Gross Unrealized Losses	(77)	(36)
Available-for-sale Securities	3,093	2,656
Bonds available for sale | U.S. government and government sponsored entities | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	0	0
Bonds available for sale | Obligations of states, municipalities and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	16,030	17,377
Available for sale securities, Gross Unrealized Gains	632	1,297
Available for sale securities, Gross Unrealized Losses	(150)	(30)
Available-for-sale Securities	16,512	18,644
Bonds available for sale | Obligations of states, municipalities and political subdivisions | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	4	0
Bonds available for sale | Non-U.S. governments
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	15,021	15,059
Available for sale securities, Gross Unrealized Gains	478	717
Available for sale securities, Gross Unrealized Losses	(280)	(117)
Available-for-sale Securities	15,219	15,659
Bonds available for sale | Non-U.S. governments | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	0	0
Bonds available for sale | Corporate debt
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	130,263	126,310
Available for sale securities, Gross Unrealized Gains	4,302	8,666
Available for sale securities, Gross Unrealized Losses	(2,681)	(800)
Available-for-sale Securities	131,884	134,176
Bonds available for sale | Corporate debt | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	(11)	17
Bonds available for sale | Mortgage-backed, asset-backed and collateralized
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	63,664	64,183
Available for sale securities, Gross Unrealized Gains	3,332	4,051
Available for sale securities, Gross Unrealized Losses	(984)	(377)
Available-for-sale Securities	66,012	67,857
Bonds available for sale | Mortgage-backed, asset-backed and collateralized | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	1,375	1,639
Bonds available for sale | Residential mortgage-backed securities (RMBS)
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	32,825	34,181
Available for sale securities, Gross Unrealized Gains	2,961	3,273
Available for sale securities, Gross Unrealized Losses	(560)	(220)
Available-for-sale Securities	35,226	37,234
Bonds available for sale | Residential mortgage-backed securities (RMBS) | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	1,330	1,568
Bonds available for sale | Commercial mortgage-backed securities (CMBS)
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	12,821	13,538
Available for sale securities, Gross Unrealized Gains	182	408
Available for sale securities, Gross Unrealized Losses	(312)	(105)
Available-for-sale Securities	12,691	13,841
Bonds available for sale | Commercial mortgage-backed securities (CMBS) | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	28	42
Bonds available for sale | Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS)
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	18,018	16,464
Available for sale securities, Gross Unrealized Gains	189	370
Available for sale securities, Gross Unrealized Losses	(112)	(52)
Available-for-sale Securities	18,095	16,782
Bonds available for sale | Collateralized Debt Obligations/Asset-Backed Securities (CDO/ABS) | AOCI- OTTI
Schedule of Available-for-sale Securities [Line Items]
Total, Other-Than-Temporary Impairments in AOCI	17	29
Equity securities available for sale
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	0	1,305
Available for sale securities, Gross Unrealized Gains	0	424
Available for sale securities, Gross Unrealized Losses	0	(21)
Available-for-sale Securities	0	1,708
Equity securities available for sale | Common Stock
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	0	703
Available for sale securities, Gross Unrealized Gains	0	379
Available for sale securities, Gross Unrealized Losses	0	(21)
Available-for-sale Securities	0	1,061
Equity securities available for sale | Preferred Stock
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	0	504
Available for sale securities, Gross Unrealized Gains	0	29
Available for sale securities, Gross Unrealized Losses	0	0
Available-for-sale Securities	0	533
Equity securities available for sale | Mutual Funds
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, Amortized Cost, Total	0	98
Available for sale securities, Gross Unrealized Gains	0	16
Available for sale securities, Gross Unrealized Losses	0	0
Available-for-sale Securities	$ 0	$ 114